EPR study of trap-centres produced on TiO2 particles during water photolysis
作者:M. Avudaithai、T.R.N. Kutty
DOI:10.1016/0025-5408(88)90258-9
日期:1988.11
The results of an EPR investigation are presented on the paramagnetic trap-centresproduced on hydrothermally prepared TiO2particlesduringwaterphotolysis at room temperature under band-gap irradiation. The trapped holes correspond to O− species adjacent to cation vacancies that are formed to compensate the hydroxyl ions in the subsurface layers. The trapped electrons are accounted for as Ti3+ in